[Doc] Fix typo in integrating guide
[Doc] Fix typo in integrating guide

apache/incubator-groovy,apache/groovy,apache/incubator-groovy,apache/groovy,paulk-asert/groovy,paulk-asert/groovy,apache/incubator-groovy,apache/groovy,apache/groovy,paulk-asert/groovy,paulk-asert/groovy,apache/incubator-groovy